BLU Life Play vs Yezz Billy 4

Compare recorded specifications, size and practical differences.

+ Add a third phone

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

  • Weight

    Billy 4: 16 g lighter

    Life Play:
    125 g
    Billy 4:
    109 g
  • Width

    Billy 4: 4 mm narrower

    Life Play:
    68.4 mm
    Billy 4:
    64.4 mm
  • Screen diagonal

    Billy 4: 0.7 in smaller diagonal

    Life Play:
    4.7 in
    Billy 4:
    4 in
  • Chipset

    Life Play:
    Mediatek MT6589 (28 nm)
    Billy 4:
    Qualcomm MSM8212 Snapdragon 200 (28 nm)
  • Depth

    Life Play: 2 mm thinner

    Life Play:
    7.9 mm
    Billy 4:
    9.9 mm
  • Height

    Billy 4: 14.5 mm shorter

    Life Play:
    137 mm
    Billy 4:
    122.5 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

  1. 1. Life Play

    Height:
    137 mm +14.5 mm versus Billy 4
    Width:
    68.4 mm +4 mm versus Billy 4
    Depth:
    7.9 mm
  2. 2. Billy 4

    Height:
    122.5 mm
    Width:
    64.4 mm
    Depth:
    9.9 mm +2 mm versus Life Play

Weight

Bars start at zero and share a scale within this chart.

  1. 1. Life Play

    125 g

    +16 g versus Billy 4

  2. 2. Billy 4

    109 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

  1. 1. Life Play

    Screen diagonal:
    4.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    60.9 cm²
  2. 2. Billy 4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

Life Play has approximately 33.7% more rectangular screen area than Billy 4.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for Life Play, Billy 4, compared at the same storage capacity.
StorageLife PlayBilly 4
4 GB 1 GB RAM Unknown
Billy 4: Original memory entry

4 GB · 512 MB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Life Play

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. Billy 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

  1. 1. Life Play

    1800 mAh

    +500 mAh versus Billy 4

  2. 2. Billy 4

    1300 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. Life Play2. Billy 4

Everyday essentials
Everyday essentials — specifications for Life Play, Billy 4.
SpecificationLife PlayBilly 4
Dimensions (HxWxD)
  • 137 Х 68.4 Х 7.9 mm
  • 122.5 Х 64.4 Х 9.9 mm
Weight
  • 125 g
  • 109 g
Technology
  • LED-backlit IPS LCD
  • TFT
Screen size
  • 4.7" inch
  • 4" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 1 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.2 (Jelly Bean)
  • Microsoft Windows Phone 8.1
Chipset
  • Mediatek MT6589 (28 nm)
  • Qualcomm MSM8212 Snapdragon 200 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Life Play, Billy 4.
SpecificationLife PlayBilly 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 60.9 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 65.0%
  • 57.7%
PPI /points per inch/
  • 312 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Life Play, Billy 4.
SpecificationLife PlayBilly 4
Rear camera, main
  • 8 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 8 MP
  • AF
Functions
  • LED flash
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 2 MP
  • 1.3 MP
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Life Play, Billy 4.
SpecificationLife PlayBilly 4
Processor CPU
  • Quad-core 1.2 GHz Cortex-A7
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • PowerVR SGX544
  • Adreno 302
Antutu 7 score *
  • 5998
Unknown
GeekBench 4 Single Core *
  • 330
Unknown
GeekBench 4 Multi-Core *
  • 1149
Unknown
General specs
General specs — specifications for Life Play, Billy 4.
SpecificationLife PlayBilly 4
Release date
  • 2013
  • March
  • 2014
  • June
Colors
  • Black
  • White
  • White
  • Black
  • Red
  • Gun Metal
  • Blue
  • Yellow
  • Champing Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 180 EUR
Unknown
Battery life
  • Stand by time- Up to 780 h (2G) / Up to 700 h (3G) Talking time- Up to 18 h (2G) / Up to 16 h (3G)
  • Stand by time- Up to 350 h (2G) / Up to 300 h (3G) Talking time- Up to 7 h (2G) / Up to 4 h 30 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Life Play, Billy 4.
SpecificationLife PlayBilly 4
SIM card
  • Dual SIM (Mini-SIM and Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA 42.2/5.76 Mbps
GPRS
  • Class 12
  • Class 12
Edge
  • Class 12
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for Life Play, Billy 4.
SpecificationLife PlayBilly 4
Radio
  • Stereo FM radio
  • Stereo FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Life Play, Billy 4.
SpecificationLife PlayBilly 4
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Also known as BLU L100
  • Sensors Accelerometer
  • proximity